// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_COMMON_INPUT_SYNTHETIC_WEB_INPUT_EVENT_BUILDERS_H_
#define CONTENT_COMMON_INPUT_SYNTHETIC_WEB_INPUT_EVENT_BUILDERS_H_

#include "base/time/time.h"
#include "content/common/content_export.h"
#include "third_party/WebKit/public/platform/WebGestureEvent.h"
#include "third_party/WebKit/public/platform/WebInputEvent.h"
#include "third_party/WebKit/public/platform/WebMouseWheelEvent.h"

// Provides sensible creation of default WebInputEvents for testing purposes.

namespace content {

class CONTENT_EXPORT SyntheticWebMouseEventBuilder {
public:
    static blink::WebMouseEvent Build(blink::WebInputEvent::Type type);
    static blink::WebMouseEvent Build(blink::WebInputEvent::Type type,
        int window_x,
        int window_y,
        int modifiers);
};

class CONTENT_EXPORT SyntheticWebMouseWheelEventBuilder {
public:
    static blink::WebMouseWheelEvent Build(
        blink::WebMouseWheelEvent::Phase phase);
    static blink::WebMouseWheelEvent Build(float x,
        float y,
        float dx,
        float dy,
        int modifiers,
        bool precise);
    static blink::WebMouseWheelEvent Build(float x,
        float y,
        float global_x,
        float global_y,
        float dx,
        float dy,
        int modifiers,
        bool precise);
};

class CONTENT_EXPORT SyntheticWebKeyboardEventBuilder {
public:
    static blink::WebKeyboardEvent Build(blink::WebInputEvent::Type type);
};

class CONTENT_EXPORT SyntheticWebGestureEventBuilder {
public:
    static blink::WebGestureEvent Build(blink::WebInputEvent::Type type,
        blink::WebGestureDevice source_device,
        int modifiers = 0);
    static blink::WebGestureEvent BuildScrollBegin(
        float dx_hint,
        float dy_hint,
        blink::WebGestureDevice source_device);
    static blink::WebGestureEvent BuildScrollUpdate(
        float dx,
        float dy,
        int modifiers,
        blink::WebGestureDevice source_device);
    static blink::WebGestureEvent BuildPinchUpdate(
        float scale,
        float anchor_x,
        float anchor_y,
        int modifiers,
        blink::WebGestureDevice source_device);
    static blink::WebGestureEvent BuildFling(
        float velocity_x,
        float velocity_y,
        blink::WebGestureDevice source_device);
};

class CONTENT_EXPORT SyntheticWebTouchEvent
    : public NON_EXPORTED_BASE(blink::WebTouchEvent) {
public:
    SyntheticWebTouchEvent();

    // Mark all the points as stationary, and remove any released points.
    void ResetPoints();

    // Adds an additional point to the touch list, returning the point's index.
    int PressPoint(float x, float y);
    void MovePoint(int index, float x, float y);
    void ReleasePoint(int index);
    void CancelPoint(int index);

    void SetTimestamp(base::TimeTicks timestamp);

    int FirstFreeIndex();
};

} // namespace content

#endif // CONTENT_COMMON_INPUT_SYNTHETIC_WEB_INPUT_EVENT_BUILDERS_H_
